Problem:What will happen to the balloon when its in cool water and warm water?
Research:Expand-to take up more space
Contract-to take up less space Hypothesis:If I put the water bottle in warm water then it will expand.
If I put the water bottle in cold water then it will contract Materials: Safety goggles,Balloon,Plastic bottle,Warm water,Cold water Procedure: 1.)Stretch the opening of the balloon over the neck of the bottle. 2.)Observe the balloon at room temperature. Record observations. 3.)Place the bottle with the ballon in the warm water for about 30 seconds.
4.) Observe the ballon again and record any changes you see in the balloon. 5.)Remove the bottle and ballon from the warm water and quickly place it in the cold
water for about 30 seconds (or until it cools).
6.) Observe the ballon and record any changes you see in the ballon. Results:
Water Temperature
Prediction
Description of the Balloon
Room Temperature
Warm
It puffed up
Cold
died down,small flabby.
Conclusion:My hypothesis was correct,I stated that when I put the water bottle in warm water
it would expand and when I put the water bottle in cold water it would contract.My results showed that the balloon puffed up in
warm water and that the balloon was flat.
I can state a hypothesis related to the problem and procedure.
I can conduct research about concepts that are related to the topic I am investigating.
I can collect quantitative/qualitative data while conducting an experiment.
I can use the data in my results to draw a conclusion about what happened and why.
Overall, I can apply the scienctific method to solve a problem.
Expansion and Contraction Lab
Problem:What will happen to the balloon when its in cool water and warm water?
Research:Expand-to take up more space
Contract-to take up less space
Hypothesis:If I put the water bottle in warm water then it will expand.
If I put the water bottle in cold water then it will contract
Materials: Safety goggles, Balloon, Plastic bottle, Warm water, Cold water
Procedure:
1.) Stretch the opening of the balloon over the neck of the bottle.
2.) Observe the balloon at room temperature. Record observations.
3.) Place the bottle with the ballon in the warm water for about 30 seconds.
4.) Observe the ballon again and record any changes you see in the balloon.
5.) Remove the bottle and ballon from the warm water and quickly place it in the cold
water for about 30 seconds (or until it cools).
6.) Observe the ballon and record any changes you see in the ballon.
Results:
Conclusion:My hypothesis was correct,I stated that when I put the water bottle in warm water
it would expand and when I put the water bottle in cold water it would contract.My results showed that the balloon puffed up in
warm water and that the balloon was flat.